Feed-water heater.



No. 687,728'. Patented Dec. 3, |901.

T. J. CDOKSON.

FEED WATER HEATER.

(Application le Mar. 24, 1900.)

`(No Model.)

N H n hun NITED STATES PATENT EETCE,

THOMAS J. COOKSON, `OF JULIET, ILLINOIS;

FEED-WATR HBA-ren.

SPECIFICATION forming' part 0f Letters Ptnt N0. 687,728, dated December 3, 1901. Application led March 24,1900. Serial No. 10,0041 (No model.l

To tu wiwi/'nf it iitcty concern: l

Be it known that I, THOMAS J. Cooisoit, a citizen of the United States, residing at Joliet, county of Will, State of Illinois, have invented a new and useful Improvement in Feed-Water Heaters, of which the following is a specification.

The object of my invention is to provide a heater in which the waste steam is utilized to heat the feedhwater for the boiler and in which the steam is purified as it passes through. In most heaters of this class the steam is forced by a circuitous passage to go into the heatinghchamber and brought in contact withthe feed-water and exhausted from the chamber. In my patent of July 9, 1895, No. 542,331, I have shown a heater of .this description; but in practice I find that steam sufficient to heat the water will be drawn into the heating-chamber by the vacuum produced by condensation if only a passage-way from the steam-chamber to the heating-chamber is provided, thereby allowinga much freer passage of the steam through the heater and a less wasteful consumption of it.

My present invention aims 'at providing a heater in which these advantages are obtained.

It consists of details hereinafter described, and particularly pointed out in the claims.

Figure 1 is alongitudinal sectional view of my heater. Fig. 2 is a cross-sectional View on lines 2 2, Fig. 1. Fig. 3 is a perspective view of the lower portion of my heater, partially broken away, showing the interior.

A represents the steam-chamber; B, the heating-chamber; C, the water-chamber from which the heated water is drawn od; D, the steam-pipe leading from the steam-chamber to the heating-chamber; E, the water-pipe leading from the heating-chamber to the water-chamber; F F, the baffle-plates; G, the steaminlet; H, the exhaust; I, the waterpans; J, the water-inlet; K, the spraypan;

L, the vent-valve by which the air is allowed to escapee The operation of my invention is as follows: The steam enters at Gr, strikes the baffle-plate F, where the oil and water are 5o separated from it, passes around it, as indicated by tlle arrows, and out at H. The baffle-plates are interposed to prevent the steam going directly through. They are'set at an angle 'and provided with ridges fte' -more completely' eitract the oil and wat'er.

They are similarly placed before both inlet and outlet, so that the iow of the steam may be reversed, being the same in either direction. The steam-pipe D leads from the cham-1 ber A into the chamber B, and the pans I are placed on top of its upper end. Openings d are located at its upper end to allow the steam to enter below the pans. The pans are made to overow alternately at the edges' and at the central openings i. They are set loosely one upon the other, so that they may be readily relnoved for cleaning. The water enters through the inlet J into the spray-pan K, from which it drips into the pans. The vent L is placed in the top to allow the air to be drawn 0E in case it accumulates there while the heaterisempty. Thesteamenteringthrough D strikes the cold water and is condensed, producing a vacuum. This vacuum draws more steam into the chamber B, and in this way a continuous flow of steam int'o the chamber takes place just sufficient to heat the water. No steam is drawn off from this chamber, there being no exhaust-outlet, none being necessary. This simplifies the heater in many ways and consumes less steam than in the usual method, only as much steam being drawn up as can be condensed by actually coming in contact with the water or by the cold of the chamber, and supplies to the chamber a uniform amount of heat .according to the amount required.

The water-level in the chamber B is preserved in the usual way, and the heated water passes into the chamber C through the pipe E, where it is drawn oi.

What I claim, and desire to secure by Letters Patent, is-

1. The herein-described feed-water heater, consisting of the combination of the steamchamber A, having the inlet-port G and outlet-port H, and providing a free passage for the steam, the heating-chamber B, having the water-inlet K, at the top, and the water-outlet E, at the bottom, and the steam-pipe D,

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leading from said steam-chamber to said heatwater-inlet K, at the top and the outlet E, at ing-chamber, al1 substantially as shown and the bottom, aud the bafie-pia'oes F F in said I described. steam-chamber in front of said ports, all sub- 2. The herein-described feed-Water heater, stantia-lly as shown and described.

5 consisting of the combination of the steam- THOMAS J. COOKSON.

chamber A, having the inlet and outlet ports. Witnesses: G, H, and providing a free passage for the CHARLES J. DRIEVER, steam, the heating-chamber B, having the LOUIS V. LE MOYNE. 

